Questions about identifying, locating and repairing oil leaks from an engine, gearbox or differential

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24
votes
2answers
7k views

Do I have an oil leak if I have to add oil?

I don't change the oil all that often (maybe every 8000 miles) and on my 10 year old car the oil light comes on and I need to add a quart or two (and then I start thinking I practically changed the ...
16
votes
8answers
2k views

Will having a radiator full of engine oil do damage to the motor?

I've got one question; I was looking over this car that I was going to buy and there was engine oil in the radiator. I asked the guys why it was in there and he said he didn't have enough coolant to ...
11
votes
5answers
122k views

Why would there be transmission fluid in the water overflow reservoir?

The car is a '98 Buick Lesabre with the 3800 engine and about 170k miles. It appears as though some oil was in the radiator, but I haven't seen any signs of coolant in the oil. The water pump recently ...
11
votes
2answers
96 views

Why is oil on my throttle body hose?

I've been tracking down a number of low grade oil smells in the car lately (2004 Subaru WRX). So far, that has included replacing the left front axle (was losing all kinds of grease through the ...
10
votes
4answers
38k views

Oil burning smell and slow oil leak

I am wondering what types of issues I am most likely looking at with this; My 2003 Ford Escape (V6) has an increasingly pronounced burnt oil smell that has developed slowly over a year or so, coupled ...
8
votes
2answers
4k views

How can you tell the difference between oil or transmission fluid in the antifreeze?

I am in the process of repairing my 1997 Toyota 4-runner with a v-6 engine. I have only had the vehicle for a couple of days. I was doing a routine maintenance check on all the fluids. What I found ...
8
votes
1answer
1k views

What do i need to know when replacing a valve cover gasket

I have an oil leak from a cracked valve cover gasket that i want to replace myself. I bought the gasket nearly 6 months ago and i am apprehensive at doing it myself without sort of feed back as to ...
6
votes
4answers
24k views

Can a oil leak cause a fire?

My mechanic has recommended that I fix an oil leak in my car. My car is old and really, I rarely drive it so I'm reluctant to spend any money on fixing it unless it's going to cost more later on or ...
6
votes
3answers
369 views

Did the mechanic damage our car?

I purchased a 125k mile 2005 Toyota Camry in good condition and with a good service history about 5 months ago. It was due for its second oil change since we've owned it so my wife took it in to a ...
6
votes
1answer
7k views

How does low oil level cause misfires or VTEC malfunctions?

So a few days ago my 2003 Honda Civic EX started misfiring while accelerating, especially with the A/C turned on, making popping noises, and then yesterday got a P1259 "VTEC system malfunction code". ...
6
votes
2answers
36 views

Oil leaking into spark plug well despite new gaskets — is RTV a solution?

I replaced my valve cover gasket and the spark plug well sealer gaskets on my 2004 Mitsubishi Lancer recently because of an oil leak. The previous owner (or his mechanic) had over-tightened the bolts ...
6
votes
3answers
318 views

Car stored for 6 months shows low oil level after 300 miles

Just bought a car from a BMW dealer and the guy told me it was sitting for almost 6 months before I came to purchase it. When I left the dealership the oil was above the min mark showing green. Drove ...
6
votes
1answer
45 views

Oil leakage or normal engine procedures

It was raining yesterday and I noticed the typical rainbow colouring of some of the water around my car. Couldn't tell there and then if it was a car body fluid leak or just the water going trough the ...
6
votes
2answers
12k views

Oil pan threads stripped?

EDIT Helpful links on how threads got stripped and by who: http://tl.acurazine.com/forums/showthread.php?t=878261 Seems to be a common problem with some shops, where they don't take good care. ...
6
votes
2answers
948 views

What's the proper method of replacing the crank shaft oil seal of a Honda Rebel?

I've been searching for a guide, but haven't found anything the deals with the oil seals specifically. My '09 Honda Rebel is leaking oil into the flywheel cover, and I suspect the flywheel and crank ...
5
votes
2answers
1k views

How severe is a bad oil seal on a used car?

Okay, go easy on me. I'm a bit of a vehicle lightweight. I can do basic maintenance, but in terms of "how bad is this," I'm usually lost. My boyfriend bought a 2010 VW CC a few days ago. Two days ...
5
votes
2answers
6k views

Oil leak when parked on steep incline

The other day I parked my car, and came back a couple of hours later to see a massive oil puddle under my 1994 Corolla. This was the only time I had ever noticed that much of a leak, and I realized it ...
5
votes
2answers
5k views

oil leaks when driving, not while parked

My wife has a 2004 Mazda 6, 2.3 liter 4 cylinder. When the car is parked, oil doesn't pool underneath. After driving for about an hour, we need to add about 1-3 quarts. With this issue, where could ...
5
votes
2answers
31 views

Fixing a gasket oil/transmission fluid leak with epoxy glue - possible reaction with oil?

I'm in Sierra Leone where mechanics have an impressive flair for improvising with limited resources, but a lack of formal training and a cavalier attitude to long term safety. I've had a transmission ...
5
votes
4answers
144 views

Removing oil stains from the driveway?

A few weeks ago, our car seems to have spilled some oil on our driveway. I regret that I didn't ask sooner but I hope it's not too late: --> What can I do to remove these stains? As for the car, I'm ...
5
votes
1answer
93 views

Engine temperature low when it's cold outside

My engine temperature is low when it's cold outside. I'll drive for 30 min, and the engine temperature will be at the quarter mark. If it's moderately cold outside, the temperature will eventually ...
5
votes
2answers
1k views

Cadillac CTS 2007 3.6 oil consumption

3 months ago I bought Cadillac CTS 2007 3.6 with 31k miles, next day I went to local garage and changed the oil, filters, etc. I have driven 7k miles since and when driving last week car started ...
5
votes
2answers
552 views

What does this device on a 1985 Mercury Lynx/Ford Export Diesel do?

I have a 1985 Mercury Lynx (Ford Escort) Diesel 4 cylinder. The device shown in the pictures -- below the starter -- has a hose connecting it to the radiator. There is another hose that is ...
5
votes
1answer
5k views

Oil leak - just keep refilling?

I have a 1995 Honda Accord with over 170k miles on it. I have the oil changed regularly every 3000 miles. My mechanic noticed the oil levels were pretty low at each oil change and took a deeper look. ...
5
votes
2answers
966 views

What is the durability of a plastic valve cover?

After a change of the valve cover gasket didn't fix a rather persistent leak (than managed to cover my entire engine in oil) I took my car to a mechanic. They called up saying that they have ...
4
votes
4answers
14k views

Oil leaks after oil change - shop says engine oil pan gasket needs to be replaced

I brought my 2000 Honda Civic to my local Castrol shop for an oil change. After leaving for work the next day my wife told me there was a three foot wide pool of oil where my car was. I moved my car ...
4
votes
3answers
4k views

Ford Taurus common oil leak area?

On my last oil change, the technician noted some oil around top and side of the engine block and said there is a small leak. The only way to find where it is coming from is doing the whole dye test, ...
4
votes
2answers
2k views

Blue smoke on engine start

I got my 2002 Camry when it had 86K and now it has 97K on it. In the morning when I start the engine, I see blue-ish smoke coming out of the exhaust for a while. I don't know if I had it before, but ...
4
votes
4answers
4k views

How could an oil drain plug fall out after 36 days and 2500 miles?

We had an oil change done at a quick lube type shop. After 36 days and 2500 miles driven, the oil drain plug fell out, resulting in severe engine damage. There was no oil leakage or any sign of ...
4
votes
2answers
2k views

Dealership Installed “Oversized” Oil Drain Plug As Solution

In this question, we discuss stripped oil pan threads. I learned it is a result of user error - over tightening and cross threading, by the dealership I consistently go to. Many people have come ...
4
votes
2answers
1k views

Oversize Engine Oil Drain Plug?

So... I stripped the bottom half of the threads due to trying to use a washer on a non-washer using drain plug. My aluminum oil pan (and plug) turns out to not be the standard oil pan for the vehicle ...
4
votes
1answer
55 views

Oil leak: any idea of the likely source?

The oil leak is slow and builds up after time. Seems to get worse if driving over 70mph. Car is ford fiesta 1.4 tdci. The picture where i've highlighted red circle - the oil seems to build ...
4
votes
1answer
120 views

What do you use to clean oil off of drive belt

a power steering hose leaked near my drive belt and it is squealing a bit. I have fixed the leaky hose and need to clean up the mess. What can I use to clean the drive belt?
4
votes
1answer
979 views

My car doesn't leak oil but I have to tap it off every 500 miles

I am in a really weird situation. I have a BMW 325i(2002). I bought it second hand and I have been driving it for 5 years. Now, lately I have been having to tap my oil every 500 miles with 2 quarts. ...
4
votes
1answer
285 views

Oil leak from oil pan in new car, will gasket repair have shorter life than factory seal?

I recently purchased a 2013 Lexus RX450H and when it came time to do the 5,000 mile service, a leak was detected of the oil from the oil pan. Further investigation revealed that at the factory there ...
4
votes
2answers
9k views

Oil leaking from spark plug socket

I have oil leaking from a spark plug socket on my 1981 Volkswagen Rabbit pickup truck. Before you ask, it's swapped with the 1.6 gas motor instead of the 1.6 diesel. The oil leak appears to only be ...
3
votes
3answers
11k views

What can cause an oil leak which spill everywhere in the car (Toyota) including the top inside of the hood?

My friend lent me her Toyota Corolla and as I put it in my driveway I saw oil drops. I later lifted the the hood and saw oil spilled inside the top of the hood and on the belt every where. It was ...
3
votes
3answers
2k views

Normal oil and fuel consumption for MkIV Golf 1.4l?

Vehicle: 2002 VW Golf (German) Engine: 1.4 liter, gasoline 75 hp Odometer: 60k miles / 100k km Fuel consumption: 29-33 MPG / 7-8 liters/100km Oil used: 5W30 ...
3
votes
2answers
723 views

Advice needed - My car has burn mark on hood and seems to be leaking oil

I have a 4 year old, well loved Honda civic with only about 25K. It has been serviced nearly every 6 months. I just took it for a service a few weeks ago and today I noticed that it seemed to be ...
3
votes
1answer
354 views

Pontiac Aztek 2004 Oil Leak

There is some leaking underneath the engine. My guess is that it's an engine oil leak. Do you think I'm correct? From your experience, what is a good place to start looking for the leak? Thank you!
3
votes
1answer
4k views

Starting a car that has been sitting for about a year [duplicate]

Possible Duplicate: Reviving a vehicle that has been idle for a long time. My 1998 Trans Am has about 80,000 miles on it and has been sitting for about a year without being started in my ...
3
votes
5answers
76 views

Burning a lot of oil. Need tips to reduce!

I have a 2002 Toyota Highlander V6 4wd with 165,000 miles. And right now I am burning a lot of oil. About 1 quart per 300-500 miles (under normal use). Going on long trips burns an excessive amount ...
3
votes
1answer
1k views

Volkswagen Jetta Oil Pan Change

So recently I hit a speed bump and cracked a small section on the oil pan. I ordered one and received it. The problem is getting off the oil pan. On opposite sides there are about 6-7 screws which my ...
3
votes
1answer
781 views

Volvo s40 Oil Pressure light

My fiance was driving our S40 to work this morning and saw a bit of smoke rolling from under the hood, she decided to let the smoke dissipate then limp the car home. On the return trip the car kicked ...
2
votes
4answers
720 views

Oil on driveway: Will a Belly pan be helpful?

My car slowly drips oil from the drain plug and between the tranny and engine, at least, according to the mechanic. An unnecessary 1600$ repair. Do you think a belly pan would be helpful to at least ...
2
votes
2answers
2k views

Engine oil leak from motorcycle

I'm having this peculiar problem. There is an engine oil leak from my 160 cc motorcycle. The thing is that, I got the engine oil changed couple of days back, by a nearby mechanic. Now the problem is ...
2
votes
2answers
2k views

Prius burns off oil very fast. Is this normal?

I replaced the oil on my mom's Prius today, which is 3200 miles or so since I replaced it last. The car only takes 3 quarts of oil, but only drained a little over 2 quarts. My jeep, on the other ...
2
votes
1answer
237 views

Oil all over outside of engine

I have a 1988 yamaha route 66....I put some oil in, it has a slow leak by kickstand...I took it for a 5 mile ride last night. Afterwards I found it sitting in oil, and the outter engine /side was ...
2
votes
1answer
113 views

ISUZU CUBIC mixing oil in coolant

ISUZU CUBIC - CITIBUS ENGINE - 6hh1, 8300cc, 6 Cylinder, No Turbo I have this Isuzu with the above description. It is mixing oil and water coolant. I did not find water in the crankcase but found oil ...
2
votes
1answer
105 views

Huge oil leak but plug still there

Just had an issue with my 2008 4runner. The engine light came on, and so I pulled over and checked the oil level. It seemed to not have any, so I added a quart. I looked under the car and saw that ...